Lighting-fixture.



M. HERSKOVITZ.

LIGHTING FIXTURE.

APPLICATION FlLED-JHNE 1. 1915- Pmnmd May 30, WW.

MAX HERSKOVI'JDZ, OF CHICAGO, ILLINOIS.

LIGHTING-FUETURE.

1,1841JML'L Specification of Letters Patent.

Patented ma so, 1916.

Application filed June 1, 1915. Serial No. 31,392.

To all whom it may concern Be it known that 1, MAX HERsKovrrz, a citizen of the United States, and a resident of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Lighting-Fixtures, of which the following is declared to be a full, clear, and exact description.

This invention relates to lighting fixtures, and more particularly to lighting fixtures employing incandescent electric lamps as the source of light.

The invention has particular reference to lighting fixtures of the semi-indirect lighting type, which comprise an upper translucent light reflecting shade and a lower translucent bowl, between which shade and bowl is located an incandescent electric lamp.

The primary object of this invention is to provide a cheap, simple and eflicient device, adapted to convert an ordinary direct lighting fixture, into a semi-indirect fixture, or into an indirect lightingfixture.

The invention further contemplates the use of a novel adapter, having simple and novel means for combining the upper shade and its supporting means with the lower bowl and its supporting means.

Other objects and advantages will appear in the course of this specification, and with all of said objects and advantages in view, this invention consists in the several novel features of construction, arrangement and combination of parts hereinafter fully described and claimed.

The invention is clearly illustrated in the accompanying drawing, in which:

Figure 1 is a view of a lighting fixture embodying the preferred form of the present invention, the view being partly in side elevation and partly in vertical section; Fig. 2 is a view of a supporting coupling, an electric lamp socket, and an electric socket extension, forming part of the fixture, said parts being shown detached from each other; Fig. 3 isa fragmental plan of a shade holder for the lower bowl; Fig.4 is a View, partly in side elevation and partly in central vertical section, of aslightly modi- A fied form of supporting means for the lower bowl; and Fig. 5 is a side elevation of a slightly modified form of the adapter shown in Fig. 1.

In the embodiment of the invention illustrated in Figs. 1 to 3, inclusive, of said drawing, 10 designates the upper shade and 11, the lower bowl of a semi-indirect lighting fixture, both of which may be constructed of translucent or semi-transparent glass. Preferably the upper shade overhangs the bowl, and its lower edge is separated therefrom by a slight space, but not necessarily so. The upper shade is shown as formed with a neck, 12, having an annular outstanding bead along its upper edge, and said neck is secured to a shade holder, 13, by screws, 14, threaded in the shell of the holder, 13, and bearing against the neck of the shade. Said shade holder may be in the form of a bell-shaped shade holder,

and within the hollow of said shade holder is an ordinary electric lamp socket, 15, of

the common and well-known type, its neck' portion, 16, abutting-against the inner side of the top thereof, and being secured thereto by a coupling member, 16, which has a screw-threaded hollow stud, 17, that proects down through a centrally located hole n the top of the upper shade holder, and is screwed into the internally screw-thread ed neck, 15 of the socket, 15, the shade holder being clamped. betweep said neck of thesocket and a shouldeffiidlS, on the coupling member. Said coupling member mav be formed with a ring-like member, 19, or hook, to which is secured the support ing connection for the fixture, which is usually in the form of an ornamental link;

chain. The electric wires from the socket, 15, lead out through the hollow of the stud, 17, and in accordance with the common practice, are threaded in and out through the links of the supporting chain. The lower bowl, 11, is supported from said electric socket, 15, by an adapter, 20, which preferably comprises a shade holder, 25, and a socket extension, 21, which is screwed into the electric lamp socket, 15, makes electric contact therewith, and issupported thereby. The socket extension, 21, is of the ordinary and well known form, and. comprises the usual externally screw-threaded plug portion, 22, and the internally screw-threaded socket portion, 23, into which may be screwed an incandescent electric lamp, 24.. Said adapter, 20, it is to be noted, performs the functions of supporting the lower shade and electric lamp, as well as making electric connections between the lamp, 24, and socket, 15.

In its preferred form, the lower shade holder, 25, has a plurality of downwardly and outwardly projecting arms, 25, which may be formed integral with a ring. 26, surrounding the socket extension and secured thereto in any desired manner; it is here shown as resting upon an outturned flange or bead, 27, formed on the lower edge of the socket extension. The lower ends of said arms, 25, are provided with means for at tachment to a bowl, and are here shown as formed with inwardly projecting, horizontal, end portions, 31, adapted to engage with the underside of an out-standing flange or bead, 32, formed upon the upper edge of the lower bowl,-.11. Latch members, 28, are slidably mounted on the arms, 25 and have tongues, 29, that engage with the inner face of the bowl at its upper edge and hold the" bowl between the ends of the arms, 25, and latch members, 28. Conveniently said latch members are formed with loops or eyes, 30,

that surround the arms and slidably connect the latch members therewith. By sliding the latch members up on the arms, the bowl may be readily detached therefrom by simply drawing one of the arms away from the bowl, and drawing it away from the other arms. When the latch members are brought into active position against the bowl, however, they positively secure the bowl to the arms.

In the modified form of adapter illustrated in Fig. 4, a bail-like lower shade holder, 25*, is employed, which is conveniently made of a piece of flat or round wire or rod, its upper ends being clamped between the body portion, 21*, of the socket extension, 21", and the metal shell, 21, which surrounds it. The extreme upper ends, 25", of theshade holder, 25*, may be bent outwardly to lie in a groove in the ing the annular head, 21, therein.

shell, 21, which groove is formed by stamplower bowl, 11, is preferably secured to the shade holder, 25*, by a clamping member, 25, bearing against the lower end of the bowl, 11*, a screw, 25*, secured in the shade 'holder, 25", and projecting down through the clamping member and having an ornamental nut, 25 screwed on said screw below the clamping member, and bearing against the same. It is obvious that the modified form of lower shade holder shown in Fig. 4 may be used in connection with the upper shade holder shown in Fig. 1.

In the'modified form shown in Fig. 5, the general construction illustrated in Fig. 1 is maintained, but the arms are secured to the socket extension in the same manner as shown in Fig. 4.

It is apparent that the adapter may be used to convert an ordinary direct electric lighting fixture of the type employing a flaring shade, into a semi-indirect lighting fixture, by attaching a bowl to the adapter,

The

unscrewing the electric incandescent lamp from the socket of the fixture, screwing it into the socket of the socket extension, and screwing the plug of the socket extension into the lamp socket of the fixture. The direct lighting fixture may also be converted into an indirect lighting fixture by removing the shade and lamp from the direct lighting fixture, securing the lamp in the socket extension and securing the adapter and bowl to the lamp socket.

Obviously other alterations and modifications are possible without departing from the spirit of this invention, and I desire, therefore, not to limit myself to the exact forms of construction shown and described, but intend in the following claims to point out all of the invention disclosed herein.

I claim as new and desire to secure by Letters Patent: I

1. In a lighting fixture, an upper shade holder, a widely flaring upper shade secured thereto and an electric lamp socketsecured thereto, a lower shade holder having an extension socket secured thereto, and removably secured in said lamp socket, said socket extension being adapted to receive an incandescent electric lamp, and an upwardly and outwardly flaring lower shade secured to said lower shade holder with its upper edge spaced considerably away from said upper shade.

2. In a lighting fixture, an upper shade holder, a widely flaring upper shade secured thereto and an electric lamp socket secured thereto, a socket extension, having a plug portion removably secured in said socket, and a socket portion for the reception of an incandescent electric lamp, 9. lower shade. holder removably secured to said socket extension, and having shade holding arms arranged to support a lower shade below the upper shade, but spaced considerably away therefrom, and an upwardly and outwardly flaring lower shade supportedby said lower shade holder.

3. In a lighting fixture, an upper bellshaped shade holder, an electric lamp socket therein, a coupling member for detachably securing said shade holder and socket together, said coupling member being adapted for attachment to a supporting device, a widely flaring upper shade secured to said upper shade holder, a socket extension having a plug portion removably seated in said lamp socket, and a socket portion for holding an incandescent electric lamp, a lower shade holder secured to said socket extension, and having lower shade gripping armsarranged to support a lower shade considerably below the upper shade, and an upwardly and outwardly flaring lower shade 4:. In a lighting fixture, a lower shade rwarav is:

holder comprising a plurality of downwardly extending and outwardly spreading arms, each having an inwardly projecting hook-like end portion arranged to engage with the underside of an outstanding bead on a lower bowl, and a latch member slidably mounted on each arm and having a tongue arranged to engage the inner face of the bowl behind each hook-like end of the arm. 1

5. In a lighting fixture, an upper shade holder, a widely flaring upper shade secured thereto, a lower shade holder, an upwardly and outwardly flaring lower shade secured thereto and supporting, connections between the upper and lower shade holders compris- H, X HERSKOVITZ. 

